<!DOCTYPE html>
<html lang="zh-CN">
	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<title>001-新增长度单位</title>
		<style>
			* {
				margin: 0;
				padding: 0;
			}

			.box1 {
				width: 200px;
				height: 200px;
				background-color: deepskyblue;
			}

			.box2 {
				width: 50vw;
				height: 20vw;
				background-color: pink;
			}
		</style>
	</head>
	<body>
		<div class="box1">像素</div>
		<div class="box2">vw</div>
		<div class="box2">vh</div>
	</body>
</html>
